Originally Posted By viperblue72
Thanks for the responses. I ask because I have a lowly 383 and I am putting portted sidewinder heads and a tr on it. But my future plan is to build a bigger short block eventually.
My current combo is 12.5 to 1 trw domes, mp590 cam. 2800lb valiant. I'm hoping at least 10.7s.


-12.5:1 383
-ported sidewinders
-tunnel ram
-590 cam
-2800lbs

Assuming it doesnt have a crappy converter and totally the wrong gear/tire combo, if that doesn't run at least 10.70's (at a track that's below 1500'-ish elevation), there's something seriously wrong with it.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads